Whne I first got mine I had no end of grief and was getting stopped regulary at least once a week
Now I rarely get stopped and when I do it's either been just a routine check due to the time the cars out (which I have no complaints over) or if I'm caught messing about (which I can't complain about even if I wanted to

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I find treating the plod on the level and being friendly will see you 90% of the time off with a a bit of verbal and nothing else. If you get all arsey from the offset you'll get their backs up and they'll then want to find something to have you for.